Yes! They are almost two different characters, and I much prefer the book version. I see unsavory character traits in book!Hermione as well. The "SNITCH" thing stands out in my mind as particularly callous, as does the part where she leads Umbridge to the centaurs. And she's fairly venomous towards Ron throughout the series. Book!Hermione doesn't have much of a filter. That gets toned down in the movies.

I wonder how much of the Harry/Hermione shipping was also geared towards pleasing movie audiences.